90° toothed sector (module 1, 60 T) with a 60 mm arm and Ø3 pin hole, Ø5 bore — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sector-gear-m1-60t-90deg-arm-60-b5/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design following Brown's figure (1868); true size, no printing allowance
Catalog version: 2026-10-20

Overall (mm): length 43.84, width 98.98, height 8.0
- 8 mm plate: a 90° sector of a module 1, 60-tooth gear (pitch R30) on a Ø14 hub (Ø5 bore) with a 16 mm wide arm 60 mm long on the opposite side ending in a Ø3 hole for a connecting rod. A tooth space is centred on the sector's mid-line (+Y).
- Xem Studio design following Brown's figure; true size, no printing allowance (apply your own to the mating features).

dimension  value
sector  90° of 60 T, module 1 (pitch R30)
arm  60 mm to a Ø3 hole
hub  Ø14, Ø5 bore
thickness  8 mm

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Henry T. Brown (1868, public domain): Five Hundred and Seven Mechanical Movements — scan on archive.org — web — Publisher's page; dimensions are facts — https://archive.org/details/fivehundredseven00browiala
- 507movements.com: Brown's movement No. 133: figure, his text and an animation — web — Publisher's page; dimensions are facts — https://507movements.com/mm_133.html
- Xem Studio: drawing — web — Publisher's page; dimensions are facts — https://xemstudio.com/objects/sector-gear-press-mechanism/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/sector-gear-m1-60t-90deg-arm-60-b5/index.json
API: https://xemstudio.com/api/geometry?object=sector-gear-m1-60t-90deg-arm-60-b5